Premium 13 X 13' Trampoline Enclosure Safety Net for 4 Arches fits Skywalker Fits 13 X 13 Ft. Frame Size Trampolines. Fits Square Shaped Trampolines. Fits 4 Arch Enclosure Systems (Sold Seperately) Has Adjustable Straps for Attaching Net to Your Enclosure System (Enclosure Poles Sold Seperately) Designed to Fit Brand Trampolines.